{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["process characterization", "enabling technology", "machanical property", "manufacturing process", "material", "concept or principle"], "input": "As shown and discussed above , though some commercial tools are ready for use , very little AM constraints are considered ."}
{"process characterization": [], "enabling technology": [], "machanical property": [], "manufacturing process": ["AM"], "material": ["As"], "concept or principle": []}